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REGIONAL CATAGENESIS OF ORGANIC MATTER IN THE JURASSIC DEPOSITS OF THE CONTINENTAL ARCTIC OF THE WEST SIBERIAN OIL AND GAS PROVINCE

O. V. Shiganova 1, V. V. Sapyanik 1, T. N. Toropova 1, I. S. Igonin 2, Yu. V. Kolosova 2, V. S. Korytov 2, R. R. Shakirov 2

1 Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia; 2 NOVATEK NTTS, Tyumen, Russia

Based on the materials of pyrolytic and petrographic studies of organic matter in combination with structural and paleogeographic constructions, the paper’s authors consider the vertical and lateral OM catagenetic alteration of the Kiterbyut, Layda, Vym, Malyshevka, Golchikha and Yanov Stan Formations against the background of the author’s version of the tectonic zoning of the Mesozoic-Cenozoic platform cover of the Gydan and the western part of the Yenisei – Khatanga PA and show the prospects of Jurassic deposits on the formation of fluid hydrocarbon deposits. The reconstruction results show that the processes of oil formation within the territory under consideration are active in the depth range (absolute depth mark) from –2100 m to –4500 m.

Keywords: categenesis, organic matter, oil, Jurassic, Siberian North.

DOI 10.20403/2078-0575-2022-12с-18-31

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